Activate light theme by default when no theming is present
Activate light theme by default when no theming is present

bloomberg/bqplot,SylvainCorlay/bqplot,ChakriCherukuri/bqplot,ChakriCherukuri/bqplot,dmadeka/bqplot,dmadeka/bqplot,SylvainCorlay/bqplot,bloomberg/bqplot,rmenegaux/bqplot,SylvainCorlay/bqplot,ssunkara1/bqplot,bloomberg/bqplot,ChakriCherukuri/bqplot,ssunkara1/bqplot,rmenegaux/bqplot